package com.example.yls.demoa;

import android.os.Binder;

/**
 * Created by yls on 2018/12/17.
 */

public class MyBinder extends Binder {

    public int add(int a, int b) {
        return a + b;
    }

    public String toUpperCase(String s) {
        return s.toUpperCase();
    }

}
